The PENTAX DA * 16-50mm F2.8 ED/AL (IF) wide angle zoom lens is designed for exclusive use with PENTAX digital SLR cameras and delivers the highest level of ultimate optical image quality. With aspherical elements, special optical-glass elements and original lens coatings, this lens is superior in terms of contrast, clarity and edge-to-edge sharpness. The 16-50mm features tightly sealed, weather-resistant and dust-resistant construction to enhance durability for use in rain or dusty conditions. It also features the PENTAX-original Quick-Shift Focus System for instant switching to manual-focus operation and PENTAX-original SP (Super Protect) coating to repel dust, water and grease. A new SDM system has been incorporated for smoother, quieter autofocusing operation using a built-in supersonic motor.

• High performance, wide angle zoom lens
  
• SDM system creates smoother, quieter auto focus
  
• Weather resistant and dust resistant body
  
• Quick-shift Focus System for instant switching from auto focus to manual
  
• Pentax SP coating protects the exposed lens elements
  
• Two ED elements and 3 aspherical elements compensate for chromatic and spherical aberration
  
• Developed specifically for Pentax digital SLR's
  
• Focal length equivalent to 24.5mm to 76.5mm in the 35mm format